Sydney

$529+ Cheap flights from Idaho to Sydney (SYD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SYD
Jan 4 — Jan 111
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Cheap flight deals from Idaho to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Idaho (USID) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 30, 2024.

Round-trip from

$1,010
(United Airlines)

One-way from

$529
(Jetabroad)
From Idaho to Sydney Kingsford Smith
One-way flight from Idaho to Sydney Kingsford Smith

Find flight deals from Idaho to Sydney

Best flights from Idaho to Sydney
Discover carefully curated flight deals from Idaho to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 30, 2024.

This United Airlines deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/188:29 amBOI - SYD
2 stops28h 31mUnited Airlines
Tue 3/1112:10 pmSYD - BOI
1 stop24h 12mUnited Airlines
Deal found 12/29$1,010
This Delta deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/187:15 amBOI - SYD
1 stop29h 35mDelta
Tue 3/111:15 pmSYD - BOI
1 stop26h 39mDelta
Deal found 12/29$1,015
This Mytrip deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/188:00 amBOI - SYD
2 stops34h 40mMultiple Airlines
Tue 3/112:00 pmSYD - BOI
3 stops23h 49mMultiple Airlines
Deal found 12/29$1,636
This Delta deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/176:15 amGEG - SYD
2 stops31h 20mDelta
Fri 2/2811:05 amSYD - GEG
2 stops30h 47mDelta
Deal found 12/29$1,034
This United Airlines deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/173:37 pmGEG - SYD
1 stop22h 38mUnited Airlines
Fri 2/2812:10 pmSYD - GEG
1 stop21h 45mUnited Airlines
Deal found 12/29$1,254
This Expedia deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/267:02 amGEG - SYD
2 stops30h 43mMultiple Airlines
Sun 2/27:05 amSYD - GEG
3 stops34h 26mMultiple Airlines
Deal found 12/29$2,139
This KAYAK deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/208:00 amBOI - SYD
3 stops39h 55mSingapore Airlines
Tue 2/254:10 pmSYD - BOI
3 stops62h 30mSingapore Airlines
Deal found 12/29$4,755
This AranGrant deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/23:30 pmBOI - SYD
2 stops23h 15mAir New Zealand
Sat 1/411:45 amSYD - BOI
2 stops20h 58mAir New Zealand
Deal found 12/29$6,053
This AranGrant deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/26:45 amBOI - SYD
1 stop30h 40mQantas Airways
Sat 1/43:30 pmSYD - BOI
2 stops49h 00mQantas Airways
Deal found 12/29$6,272
This Booking.com deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/175:00 amGEG - SYD
3 stops57h 35mAir Canada
Fri 2/2811:20 amSYD - GEG
3 stops68h 30mAir Canada
Deal found 12/29$20,476

Find flights from Idaho to Sydney within your budget

Customize your flight search to find flights from Idaho to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 30, 2024.

Fly from

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Fly to

Any airport

Route

Depart

Return

Price

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Thu 5/1

7:21 pm-6:35 am

2 stops42h 14m

Sydney Kingsford Smith

Sat 5/17

9:25 am-6:45 pm

2 stops26h 20m

$972

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Tue 2/18

10:30 am-7:00 am

2 stops26h 30m

Sydney Kingsford Smith

Tue 3/11

11:20 am-6:05 pm

2 stops23h 45m

$1,010

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Tue 2/18

7:15 am-6:50 am

1 stop29h 35m

Sydney Kingsford Smith

Tue 3/11

1:15 pm-10:54 pm

1 stop26h 39m

$1,015

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Mon 2/17

3:37 pm-9:15 am

1 stop22h 38m

Sydney Kingsford Smith

Fri 2/28

12:10 pm-2:55 pm

1 stop21h 45m

$1,254

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Tue 2/18

8:00 am-12:40 pm

2 stops34h 40m

Sydney Kingsford Smith

Tue 3/11

2:00 pm-8:49 pm

3 stops23h 49m

$1,636

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Thu 5/1

7:00 am-7:05 am

1 stop31h 05m

Sydney Kingsford Smith

Sat 5/17

9:10 am-1:48 pm

1 stop21h 38m

$1,778

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Thu 5/1

2:40 pm-7:15 pm

2 stops35h 35m

Sydney Kingsford Smith

Sat 5/17

6:20 pm-10:33 pm

3 stops45h 13m

$1,897

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Wed 4/2

6:15 am-8:20 am

2 stops32h 05m

Sydney Kingsford Smith

Fri 4/18

9:20 am-12:38 pm

3 stops44h 18m

$2,739

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Mon 1/20

8:00 am-5:55 pm

3 stops39h 55m

Sydney Kingsford Smith

Tue 2/25

4:10 pm-12:40 pm

3 stops62h 30m

$4,755

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Tue 4/1

1:31 pm-10:35 am

2 stops28h 04m

Sydney Kingsford Smith

Tue 4/22

10:20 am-4:43 pm

1 stop22h 23m

$7,406

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/29

Showing 1-10 of 14 results
1
2

Best time to book a flight from Idaho to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Idaho with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Idaho to Sydney

Get recent, data-driven insights about flights from Idaho to Sydney including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Idaho to Sydney?

Currently, February is the cheapest month in which you can book a flight from Idaho to Sydney (average of $1,051). Flying from Idaho to Sydney in December is currently the most expensive (average of $1,643). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ID to SYD?

Find hourly flight availability from Idaho to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 30, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to Sydney as you normally would.

Rainfall in Sydney by month

Plan your trip to Sydney by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sydney ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Sydney when rainfall is around 2.0 in.

Temperature in Sydney by month

Plan your trip to Sydney by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated December 30, 2024.
To help decide which airline to fly from Idaho to Sydney, see what other customers have to say about United Airlines and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
1,323 reviews

Crew

8.6

Comfort

8.0

Entertainment

8.0

Boarding

8.2

Food

7.7

Overall

8.1

Reviews

1 / 10

Sin to amd was not good flight. Food was bad. It was like few days old.

8.1
Very good
1,323 reviews
8.1
Very good
1,323 reviews

Crew

8.6

Comfort

8.0

Entertainment

8.0

Boarding

8.2

Food

7.7

Overall

8.1

Reviews

1 / 10

Sin to amd was not good flight. Food was bad. It was like few days old.

8.0
Very good
8,540 reviews
8.1
Very good
1,323 reviews

Crew

8.6

Comfort

8.0

Entertainment

8.0

Boarding

8.2

Food

7.7

Overall

8.1

Reviews

1 / 10

Sin to amd was not good flight. Food was bad. It was like few days old.

8.0
Very good
486 reviews
8.1
Very good
1,323 reviews

Crew

8.6

Comfort

8.0

Entertainment

8.0

Boarding

8.2

Food

7.7

Overall

8.1

Reviews

1 / 10

Sin to amd was not good flight. Food was bad. It was like few days old.

7.5
Good
808 reviews
8.1
Very good
1,323 reviews

Crew

8.6

Comfort

8.0

Entertainment

8.0

Boarding

8.2

Food

7.7

Overall

8.1

Reviews

1 / 10

Sin to amd was not good flight. Food was bad. It was like few days old.

7.4
Good
8,985 reviews
8.1
Very good
1,323 reviews

Crew

8.6

Comfort

8.0

Entertainment

8.0

Boarding

8.2

Food

7.7

Overall

8.1

Reviews

1 / 10

Sin to amd was not good flight. Food was bad. It was like few days old.

Related info for your journey

Find useful and relevant information for your journey from Idaho to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Sydney from Idaho?

    If you book a flight to Sydney from Idaho, you will be flying to Kingsford Smith, which is the city’s only airport. Sydney Kingsford Smith (SYD) is located 4.6 mi from the center of Sydney.

  • Can I find deals for flights from Idaho to Sydney that include hotel bookings?

    Yes. In addition to deals on Idaho to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Sydney.

  • Can I find deals for business class flights from Idaho to Sydney?

    Yes. Cheapflights offers flight deals from Idaho to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Idaho to Sydney?

    Currently, February is the cheapest month in which you can book a flight from Idaho to Sydney (average of $1,051). Flying from Idaho to Sydney in December is currently the most expensive (average of $1,643). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Idaho to Sydney

Discover the top 2 airlines that operate flights from Idaho to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$950Average$1,386FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$989Average$1,350FlexibilityNo cancel feeOn-time69%
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